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Questions and Answers
What distinguishes chemical elements from each other?
What distinguishes chemical elements from each other?
- The size of their atoms
- The number of electrons in their atoms
- The number of neutrons in their atoms
- The number of protons in their atoms (correct)
What is the only atom that has no neutron?
What is the only atom that has no neutron?
- Carbon
- Protium 1H (correct)
- Sodium
- Copper
What are atoms with the same number of protons but a different number of neutrons called?
What are atoms with the same number of protons but a different number of neutrons called?
- Compounds
- Ions
- Molecules
- Isotopes (correct)
What is the overall charge of an atom if it has more electrons than protons?
What is the overall charge of an atom if it has more electrons than protons?
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Why is it not possible to accurately predict the behavior of atoms using classical physics?
Why is it not possible to accurately predict the behavior of atoms using classical physics?
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Study Notes
Atomic Structure and Characteristics
- The unique number of protons in an atom's nucleus distinguishes chemical elements from each other.
- Hydrogen is the only atom that has no neutron, with only one proton in its atomic nucleus.
- Atoms with the same number of protons but a different number of neutrons are called isotopes.
- If an atom has more electrons than protons, its overall charge is negative, which is known as an anion.
- Classical physics is insufficient to accurately predict the behavior of atoms due to the inherent probabilistic nature of atomic phenomena, which can only be explained by quantum mechanics.
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